A text-book of physics, largely experimental. On the Harvard college "Descriptive list of elementary physical experiments." (1891)
Hall, Edwin Herbert, 1855-1938, Bergen, Joseph Y. (Joseph Young), 1851-1917 · New York, H. Holt and Company · leaf 200
. Put the partition N in place, as shown m Fig. 121, and pour waterinto the jar until its surface comes within 1 or 2 mm. of the middletooth of the partition. Then by means of the plunger (No. 14), at-tached to the side of the jar by means of its clasp, raise the level ofthe water till the apparent… … P d/~?&-. FIG. 121. FIG. 122. Then the brass index 6 is attached to the jar, as shown in Fig. 121,and is raised or lowered, with the tip p touching the glass, until aneye on the line Cg, 20 or 30 cm. from the jar, can barely see p, thevery tip of b, apparently in a straight line with Cg. This…
Physics
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